Earth-pulverizing machine.



C. JASS. EARTH PULVERIZING MAGHINE. APPLICATION FILED MAY 27, 1909.

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G. JASS.

BARTH PULVBRIZING MACHINE. APPLICATION FILED MAY 27, 1909.

,045,295 Patented N0v.26,1912.

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COLUMBIA P CARL J' ASS, OF HORICON, WISCONSIN.

EARTH-PULVERIZING- MACHINE.

Specification of Letters Patent.

Application led May 27, 1909.

Patented Nov. 26, 1912.

Serial No. 498,596.

To all whom fit may concern:

Be it'known that I, CARL JAss, a citizen of the United States, residing at Horicon, in the county of Dodge and State of Wisconsin, have invented certain new and useful Improvements in Earth-Pulverizing Machines, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention 'relates to earth pulverizing machines and the principal object of the same is to provide a novel arrangement of means for adjusting the earth pulverizing rollers.

l/Vith the above and other objects in view, the invention contemplates the employment of a frame which carries earth-pulverizing rollers at its forward portion, the said rollers being arranged in spaced relation and having novel adjusting means, whereby they may be adjusted vertically to accommodate `any inequalities upon the surface upon which they are working. r

In carrying out the objects of the invention generally stated above, it will be understood that the essential features of the invention are necessarily susceptible of `changes in details and structural arrangements, but one preferred and practical embodiment of the same is shown in the accompanying drawings,vwherein like characters of reference indicate like parts in the several views, and Figure l is a side elevasaid rollers.

` ranged to form a substantially rectangular frame. Said frame Vis also provided with a coupling bar 5 which is rigidly connected with the short bar 6 projecting rearwardly from the front connecting member 2. The front of the connecting member 2 has three draft rods or bars 7, 8 and 9 projecting from the forward side thereof, said bars being arranged respectively ladjacent each end of said member and at its intermediate portion.

As thus far described, it will be observed that the frame ofthe machine is divided by means of the bars 5 and 6, such division providing space within the frame for the independent operation of a pair of pulverizing rollers 18 which are of duplicate construction. Each roller has end-disks 20 which are connected by spaced bars 22, one edge of each bar being provided with a plurality of rectangularly-spaced openings for the passage of teeth 25, the penetrating ends of which project beyond said bars. Each roller is provided with end-shafts 28 and 29, the shafts 28 of each roller being the outwardly-projecting ones and the shafts 29 being the inwardly-projecting ones. The shafts 28 are each provided with a sprocket `wheel 30 by means of which said rollers are rotated, as will be explained.

Each of the members l, 5 and 6 is equipped with a hanger bearing 31 which overlaps and is securely fastened thereon. The outer side of each bearing is provided with two vertically-arranged spaced openings 82 and on its inner side or edge with a longitudinally-arranged elongated slot 83. A pair of guide-rods 34 are slidably mounted in the openings 32 of each hanger-bearing, said rods projecting above and below said bearing and at their lower ends connected with the outer edge of a bracket 35. The inner end of each bracket connects with a vertically-arranged guide-plate 36 having a centrally-arranged slot 37 through which the respective shaft 28 or 29 of the roller projects. The guide rods 34 lie on opposite sides of each shaft and engage with the opposed grooved edges of a bearing block 38 wherein the respective shaft is journaled, which blocks and rods, together with the slotted plates 36 assure of the outer ends of the roller being conned to a vertical movement while being adjusted.

Each of the side members l, 5, and 6 of the frame is provided with a vertically-arranged standard 41, Vsaid standardsbeing in opposed pairs. Each pair of standards is provided with end bearings 43 for a shaft 44, the outer ends of which are provided cable and allow the clutch to engage. i

with sprocket wheels 45, each of which has a chain connection 46 with the sprocket wheel 30 carried by the shaft 28 of the rollers 18. The sprocket wheel 45 Yis loosely mounted on the shaft 44 and is provided with a clutch member 47 adapted for engagement with a clutch member 48 of a similar sprocket 49, which has a chain connection 50 with a sprocket wheel 51 mounted on a driven axle 16. The other side of each sprocket wheel 49 is provided with a boss having an annular groove 51, the opposite portions of which are engaged by the angular ends 52 of a pair of arms 53 which project through bracket bearings 54 projecting from the standard 41. Said arms 53 are slidably mounted in said bearings and have a spring 55 coiled about them and interposed between their angular end and said bearing. The tension of said springs is suilicient to cause said arms to hold the sprocket wheel 49 clutched to the sprocket wheel 45. Pulleys 59 are also mounted fast on the shaft, one of saidpulleys being adjacent to each of the standards 41, said pulleys having one end of the cable 60 wound thereon, the other end thereof being connected to the hanger bearings of the shafts 28 of the rollers 18.

The side member 1 is also provided'with a bearing 76 for a slidable rod 77, the lower end of which carries an outwardly-projecting sub-shaft 78 upon which a sprocket wheel 79 is mounted, and which engages with the chain for rotating the respective rollers 18. The rod 77 has a springV 80 coiled about it and interposed between its end and the bearing 76. The said sprocket- 79 obviously maintains tension on the chains which operate the pulverizing rollers 18.

The longitudinal member 5 of the frame adjacent to its rear end is provided with a vertical standard 130 and adjacent the upper end oi this standard there is provided a guide box 135 having suitable openings for the reception of notched bars 138. The cables which control the movement of the arms 53 are led to these bars so that the movement of said arms may be controlled therefrom.

In the operation, when it is desired to lift oneor the other of said rollers, it is merely necessary to relax the tension Vof the proper By means of a suitable pawl and ratchet mechanism 140 the roller is kept from dropping back when the clutch is again pulled out of engagement after the roller has been sufliciently elevated, forward movement of the vehicle having actuated the lifting drum through the medium of the sprockets and chains. This pawl and ratchet meclianism includes a pawl 140L adapted to engage a ratchet 140b, and to the pawl 140a is secured a cord 140c which is positioned adjacent the operators seat so that by pull-Y ing on the cord he can release the pawl from the ratchet. It will be obvious that by releasing the pawl and ratchet the respective member may be allowed to return to its lowermost position. j Having thus described the invention, what is claimed as new is: i

1. In an earth pulverizing machine of the character described, a frame, hanger bear'- ings carried thereby` and provided with guide-ways projecting from one side, rods slidable in said guide-ways,V a slide-plate carried by the other side of said bearings and provided wit-h a longitudinal slot, a bracket connection between the lower ends of said rods and the lower end of said plate, a pulverizing roller supported on said bracket, means for vertically adjusting said bracket, and means for vertically adjusting' the rollers independent of said bracket.

2. In an earth pulverizing machine of the character' described, a frame composed of Y side members and a central division member, bearings carried by said members, said bearings being arranged in pairs with the mem'-VV bers of each pair oppositely disposed, slidable rods projecting through one side of each bearing, a slidableplate projecting through the opposite side of each bearing and provided with a longitudinally-extending vertically-arranged slot, a bracket con# necting the lower portions of therod'and plate, a pulverizing rollerf supportedA on"V each pair of'brackets, means for vertically adjusting said brackets, and independent means for vertically adjusting the rollers.

3. 1n an earth pulverizing machine of the character described, a frame, hanger bearl ings carried thereby and provided with guide-ways projecting fromV oneV side, rods slidable in said guide-ways, a slide plate carried by the other side of said bearings and provided with a longitudinalfslot, a bracket connection between the lower ends of said rods and the lower end of said'plate,

iio

a journal bearing slidable on said rods, a

pulverizing roller having a journalV carried in the last-mentioned bearing, means for vertically adjusting the bracket, and vmeans for vertically adjusting the journal bearingv on the rods.

4. In an earth pulverizing machine of the character described, a frame, hanger bearings carried thereby and providedwith guide-ways projecting from one side, rods slidable in said guide-ways, a slide plate carried by the other side of said bearings and provided .with a'longitudinalV slot, Va bracket connection between the lower ends of said rods and the lowerV end of said plate, a journal bearing slidable on said rods, a pulverizing roller having a journal carried in the last-mentioned bearing, means for vertically adjusting. the bracket, 'means for vertically adjusting the journal bearing In testimony whereof I hereunto affix on the rods, said means comprising a driven my signature in presence of two witnesses. axle, driven shafts, winding drums on said CARL JASS shafts and provided with clutch means for engaging said drums, and the driving means, Witnesses:

and cable connections between said winding W. S. CUMMINGS,

drums, bracket and pnlverizing rollers. E. T. FREEMAN.

Copie: of this patent may be obtained for five cents each, by addressing che Commissioner of Patents, Washington, D. C. 

